When I questioned the airlines about this, I was told that IF there was room in the closet, it could be stored there inside the plane. However...you have no control over what the attendants shove around or place on top of it :shock:
If it meets the carry on requirements, it could be placed in the overhead compartment. I would go with the over head compartment, as you can keep a better eye on it :wink:
Congratulations on becoming an instructor!!! :D:D:D